1. This lowers the refractive index, defocusing the propagating light beam. 2. Propagation then proceeds in a series of repeated focusing and defocusing steps. 3. Thus one can easily alter the shape of the CTF by defocusing the sample. 4. The detector is now sensitive to any focusing or defocusing that a sample may induce. 5. Contrary to optical applications, defocusing can actually increase the precision and interpretability of the micrographs. 6. Since the energy never exceeds breakdown, the air never blooms, and defocusing is reduced. 7. Defocusing your eyes briefly may help too . 03 : 41, 9 December 2005 ( UTC)8. The plasma has an index of refraction lower than one, and causes a defocusing of the laser beam. 9. Being farther from center, they experience a stronger field when the field is focusing than when it is defocusing . 10. Deflection fields bend the lines of force ( with negligible defocusing ), and the electrons follow the lines of force.
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